OF DENISON UNIVERSITY. I05 



Fig. iJ. Palceoneilo elliptica, upper figure, \d^x. plicate lla \ov:er, \ at. a liorisnii - 

 formis. 



Fig. 13. Grammysia hannibalensis. 



Fig. 1 4. Microdon reservatits ? 



Fig. 15. iVutulatM simiiis, cast. 



Figs. 16, 17. ? 



Fig. 18. Editwndia Inirliiigtonensis, ' , 



P'ig. 19. Cf. Fig. 4, Plate IX. 



Fig. 20. PteroniUs obliquus ? 



PT.ATE V. 



Fig. I. Rhynchonella sapplio (Cf. coopori), Congl. II. 



Fig. 2. Spi7-ijcr winchelli, dot sal valve, ("ongl. II. 



Fig. 3. Spirifer winclielli, ventral valve. 



Fig. 4. Syringothyris cuspidatus, front view. 



f'^S- 5- Syringothyris cuspidatus, ventral view of cast. 



Fig. 6. Syringothyris cuspidatus, hinge view of cast. 



^ 'g- 7- Syringothyris cuspidatus, diagramatic median section of ventral valve. 



Fig. 8. Platyceras hertzcri, cast. 



Fig. 9. Or this vanuxemi, var. pulcJiellus. 



F"ig. icx Cryptonella cudora. 



Fig. II. Sangiiinolites marshalloisis 



Fig. 12, (No. 1367.) 



Fig. 13. Spirifcrina solidirostris. 



Fig, 14. Heinipronites crenistrio?. 



Fig. 15. Schizodus cufieus. 



Fig. 16. Unidentified crinoid iVom congl. II. 



Fig. 17. Ctenodonta hotightoni ? 



Fig. 18. Rhynchojiella sp. 



PL.A'l'K Vi. 



Fig. I, Posidonotnya (stredlopteria) fragihs, sp. n. 



Fig. I. Spirt/er marionensis, ventral valve. Moots' Run, Licking Co. 

 Fig. 2a. do hinge view of same. Partial cast. 



Fig. 2I). do hinge view of dorsal valve, cast. 

 Fig. 2c. do umbonal region of same. 



Fig. T^. do dorsal valve. From concretions of lime 15 feet below hori- 



zon of No. 1. 

 Fig.. 3a. do liinge view of same. 

 Fig. 4. do ventral valve from same horizon. 



Fig. 4a. do hinge view of .same. 



